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在系统分析滑坡位移监测资料和位移演化特征的基础上,根据多重分形理论基本原理,对滑坡位移演化所具有的复杂性、突变性和非线性特征进行了分析和研究。单一分形维数对滑坡位移的演化趋势预测存在不足,文中分别以新滩滑坡、丹巴滑坡和黄蜡石滑坡为例,计算了滑坡位移时序演化的多重分维数演化特征。分析和评价位移演化规律与多重分维数演化特征的关系发现,多重分维数D1>D2>…>D∞时,滑坡趋于稳定;D1D2>…>D∞,经D1>…>Dn…>DnD2>…>D∞的演化过程时,滑坡向趋于稳定的状态演化。研究表明,可以运用多重分维数演化特征对滑坡位移演化趋势与规律进行评价与预测。
Based on systematic analysis of landslide displacement monitoring data and displacement evolution characteristics, the complexity, mutation and nonlinear characteristics of landslide displacement evolution are analyzed and studied according to the basic principles of multifractal theory. Single Fractal Dimension Predict the Evolution Tendency of Landslide Displacement. In this paper, the evolution characteristics of multi-fractal dimension of landslide displacement time series are calculated by taking Xintan Landslide, Danba Landslide and Huangcala Landslide as examples respectively. It is found that the landslide tends to be stable when the multi-fractal dimension D1> D2> ...> D∞, and the landslide is destabilized when D1 D2> ...> D∞ through D1> ...> Dn ...> Dn D2> ... > D∞ evolution, the landslide tends to be stable. The research shows that the evolution trend and rule of landslide displacement can be evaluated and predicted by using the multifractal evolutionary characteristics.